PLZ answer........

Q. Sheep --------------------- us wool. (give / gives)

it can be both coz the plural of sheep is also sheep..

THE ANS IS SHEEP gives US WOOL

Sheep gives us wool.

here sheep is referring to all sheep, all sheep give us wool.

gives

 Sheep gives us wool.

Here the subject is singular. Therefore we will add 's' to the word. If the subjectwould be 'sheeps', then we will not add 's'. 

i agree wid lakshya.....!